One entry found for Trojan horse.

Main Entry: Trojan horse
Function: noun
Etymology: from the large hollow wooden horse filled with Greek soldiers and brought within the walls of Troy as a trick during the Trojan War
1 : one intended to undermine or subvert from within
2 : a seemingly useful computer program that contains concealed instructions which when activated perform an illicit or malicious action (as destroying data files) -- compare VIRUS 3, worm 5

Pronunciation Symbols